stage 1 after e40 fail 4/3/2017 logs from the drive home with car stuttering quite often, mostly let off before complete misfires
E40 tune misfire cyl 4 I flashed to E40 tune at the gas pump, reset adaptations and went for a test drive. Th car felt strong for a few seconds then misfire cyl 4. It is a short log but shows the misfire on the e40 tune with about 48% ethanol